..Supine, moderate exercise is ineffective in maintaining orthostatic tolerance after bed rest (BR). Our purpose was to test the hypothesis that adding an orthostatic stress during exercise would maintain orthostatic function after BR...

Training with the International Space Station interim resistive exercise device

..Previously, we have documented that supine treadmill exercise within lower-body negative pressure (LBNP(ex)) maintains upright exercise responses in men after 5 and 15 d of bed rest, as a simulation of microgravity...

The effect of the rate of heat storage on serum heat shock protein 72 in humans

..25 +/- 0.73 to 2.23 +/- 0.70 ng ml(-1), HS 1.04 +/- 0.57 to 2.02 +/- 0.60 ng ml(-1)). This result suggests that eHsp72 is a function of the core temperature attained rather than the rate of heat storage...

..42 +/- 0.06 vs. 0.44 +/- 0.08 kg) were not changed. The higher resting and exercise T(in) and delayed onset of SBF and SR suggest a centrally mediated elevation in the thermoregulatory set point during bed rest exposure...

Young S Kwon1Department of Kinesiology and Recreation Administration, Humboldt State University, Arcata, California 2School of Human Movement Studies, Charles Sturt University, Bathurst, Australia 3Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, New Mexico and 4Department of Orthopedics and Rehabilitation, University of New Mexico, Albuquerque, New MexicoJ Strength Cond Res 29:2261-9. 2015

..This ergogenic response to a peripheral sensory input is consistent with the central governor theory of muscular fatigue...

..However, exercise training and, to a lesser extent, protein supplementation may be potential countermeasures to the cardiac atrophy associated with chronic unloading conditions such as in spaceflight and prolonged bed rest...